Institute of Information Science, Academia Sinica

In solving computer vision problems, adopting multiple descriptors to more precisely characterize the data has been a feasible way for improving performance. The resulting data representations are typically high dimensional and assume diverse forms. Thus finding a way to transform them into a unified space of lower dimension generally facilitates the underlying tasks, such as object recognition or clustering. To this end, the proposed approach (termed as MKL-DR) generalizes the framework of multiple kernel learning for dimensionality reduction, and introduces a new class of applications/techniques to address not only the supervised learning problems but also the unsupervised and semisupervised ones.

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